| Name |
| |
| NV_native_query |
| |
| Name Strings |
| |
| EGL_NV_native_query |
| |
| Contributors |
| |
| Mathias Heyer, NVIDIA |
| Daniel Kartch, NVIDIA |
| Peter Pipkorn, NVIDIA |
| Acorn Pooley, NVIDIA |
| Greg Roth, NVIDIA |
| |
| Contacts |
| |
| Peter Pipkorn, NVIDIA Corporation (ppipkorn 'at' nvidia.com) |
| |
| Status |
| |
| Complete |
| |
| Version |
| |
| Version 0.4, 25 Sept, 2012 |
| |
| Number |
| |
| EGL Extension #45 |
| |
| Dependencies |
| |
| Requires EGL 1.0 |
| |
| This extension is written against the wording of the EGL 1.4 |
| Specification. |
| |
| Overview |
| |
| This extension allows an application to query which native display, |
| pixmap and surface corresponds to a EGL object. |
| |
| New Procedures and Functions |
| |
| EGLBoolean eglQueryNativeDisplayNV( |
| EGLDisplay dpy, |
| EGLNativeDisplayType* display_id); |
| |
| EGLBoolean eglQueryNativeWindowNV( |
| EGLDisplay dpy, |
| EGLSurface surf, |
| EGLNativeWindowType* window); |
| |
| EGLBoolean eglQueryNativePixmapNV( |
| EGLDisplay dpy, |
| EGLSurface surf, |
| EGLNativePixmapType* pixmap); |
| |
| Changes to Chapter 3 of the EGL 1.4 Specification (EGL Functions and Errors) |
| |
| In Chapter 3.2, after the description of eglInitialize and before the |
| description of eglTerminate insert |
| |
| "While initialized, the native display that corresponds to an |
| EGLDisplay can retrieved by |
| |
| EGLBoolean eglQueryNativeDisplayNV( |
| EGLDisplay dpy, |
| EGLNativeDisplayType* display_id); |
| |
| If the <dpy> is a valid and initialized EGLDisplay, EGL_TRUE |
| will be returned and the native display handle will be written |
| to <display_id>. Otherwise EGL_FALSE will be returned and the |
| contents of <display_id> are left untouched. If the <dpy> is |
| not valid, an EGL_BAD_DISPLAY error will be generated. If <dpy> |
| is not initialized, an EGL_NOT_INITIALIZED error will be |
| generated. If <display_id> is NULL, an EGL_BAD_PARAMETER error |
| will be generated. |
| |
| In Chapter 3.5 Rendering Surfaces, after section 3.5.1 insert |
| |
| "The native window that corresponds to an EGLSurface can be |
| retrieved by |
| |
| EGLBoolean eglQueryNativeWindowNV( |
| EGLDisplay dpy, |
| EGLSurface surf, |
| EGLNativeWindowType* win); |
| |
| The corresponding native window will be written to <win>, |
| and EGL_TRUE will be returned. If the call fails, EGL_FALSE |
| will be returned, and content of <win> will not be modified. |
| If <dpy> is not a valid EGLDisplay, an EGL_BAD_DISPLAY error |
| will be generated. If <dpy> is not initialized, an EGL_NOT_- |
| INITIALIZED error will be generated. If <surf> is not a valid |
| EGLSurface, or <surf> does not have a corresponding native |
| window, an EGL_BAD_SURFACE error will be generated." If <win> |
| is NULL, an EGL_BAD_PARAMETER error will be generated. |
| |
| After section 3.5.4 Creating Native Pixmap Rendering Surfaces insert |
| |
| "The native pixmap that corresponds to an EGLSurface can be |
| retrieved by |
| |
| EGLBoolean eglQueryNativePixmapNV( |
| EGLDisplay dpy, |
| EGLSurface surf, |
| EGLNativePixmapType* pixmap); |
| |
| The corresponding native pixmap will be written to <pixmap>, |
| and EGL_TRUE will be returned. If the call fails, EGL_FALSE |
| will be returned, and the content of <pixmap> will not be |
| modified. If <dpy> is not a valid EGLDisplay, an EGL_BAD_- |
| DISPLAY error will be generated. If <dpy> is not initialized, |
| an EGL_NOT_INITIALIZED error will be generated. If <surf> is |
| not a valid EGLSurface, or <surf> does not have a corresponding |
| native pixmap, an EGL_BAD_SURFACE error will be generated." If |
| <pixmap> is NULL, an EGL_BAD_PARAMETER error will be |
| generated. |
| |
| Issues |
| |
| Revision History |
| #4 (Greg Roth, Sept 25, 2012) |
| - Further document all potential errors for all functions |
| |
| #3 (Daniel Kartch, August 30, 2011) |
| - Add restriction that EGLDisplay be initialized |
| |
| #2 (Peter Pipkorn, December 16, 2009) |
| - Minor cleanup |
| |
| #1 (Peter Pipkorn, December 15, 2009) |
| - First Draft |
| |
